JPH0311755Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a program timer that controls starting and stopping of various loads such as time signal generators in schools, factories, etc. In particular, this invention uses card reading means to set settings for controlling the starting and stopping of loads. This invention relates to an improvement to a program timer that allows input by reading the data.

<Description of the Prior Art> A device called a program timer has been put into practical use for the purpose of, for example, making a time signal to notify the start and end of work in schools, factories, banks, etc., and for turning on and off the power of lighting, air conditioning equipment, etc. There is.

This program timer is constituted by a general timing device and a set time storage means, and operates a load such as a chime every time the set time is reached. When controlling other loads such as other air conditioning equipment, lighting lights, pumps, and security equipment, a set time storage means is provided for each of these loads, and the control is performed according to the set time stored in each set time storage means. Each load is controlled by

Conventionally, the means for setting the time in the set time storage means provided for each load has generally been inputted from a keyboard. However, inputting from a keyboard is a time-consuming and troublesome task when there are many settings.

For this reason, a recent trend has been to write a code corresponding to the set time on a card, and to make the setting possible by reading this code with a card reading means.

A conventional card input type program timer will be explained using FIGS. 1 and 2.

FIG. 1 shows a schematic structure of a conventional card-type program timer. In the figure, 101 is a central processing unit, 1
02 is a ROM that stores a program for operating the central processing unit 101 in a predetermined order; 103 is a clock means that measures the current time and day of the week through cooperation between the central processing unit 101 and the ROM 102;
4 is a set time storage means. This time means 10
4 can be configured by RAM, and the number of areas corresponding to the number of loads to be controlled, for example, A,
B, C, D, E, and F are provided.

105 indicates a card reading means. By inserting the card 106 into the card reading means 105, the program written on the card 106 is read, for example optically, and taken into the set time storage means 104 from the input port 107 via the central processing unit 101.

108 is an output circuit. This output circuit 108
The set time stored in each area A to F of the set time storage means 104 through a search by the central processing unit 101 is constantly compared with the current time and day of the week measured by the clock means 103, and the current time and day of the week are compared. When coincides with the set time stored in the storage means 104, the output switches SA to SF corresponding to the storage area are controlled to be turned on or off, and the output terminals 109a to 109 are turned on or off.
Each load (not particularly shown) connected to 9f is controlled to start and stop.

FIG. 2 shows an example of entries on the card 106. The card 106 has a time entry field 201 and a condition setting field 20.
2 are provided. The condition setting field 202 includes a load specification field 202a and a time signal/timer selection field 202b.
, day of the week specification field 202c, and blowing time specification field 20
2d is provided.

The load specification field 202a has a set time storage means 10.
Symbols A to F are printed corresponding to areas A to F provided in 4, and when specifying a load, the load is specified by filling in the symbol corresponding to the load with black, for example, with a pencil or the like. One load can be specified per card. That is, for example, when controlling the lighting of advertising lights using the load designation symbol A, the symbol A is painted black. In the time signal/timer selection column 202b, if the load is an advertising light, the column on the timer side is filled in black. Furthermore, in the day of the week designation field, all days of the week on which advertising lights should be turned on are filled in black. Then, in the time entry column 201, the lighting time and light-off time are written in black. That is, the first column of the time entry field 201 represents the 10th digit of the hour, and the second column represents the 1st digit of the hour. The third column represents the value of the 10th digit of the minute, and the fourth column represents the value of the 1st digit of the minute. So, for example, to write 12:30, write the time by blacking out "1" in the first column, "2" in the second column, "3" in the third column, and "0" in the fourth column. can be filled in. Enter the time when the advertising lights will be turned off in the next column.

In this way, the set time is stored in the storage means 104 for each load, but in order to change the set time for the same load, the content written on the card 106 is changed, and this changed card is sent to the reading device 1.
05 is read. When new card contents are read, the storage means 104 erases the data related to the load and writes new data.

<Conventional Disadvantages> In this type of conventional card input type program timer, a storage area is designated for each load. Therefore, as explained above, in cases such as controlling the lighting and turning off of advertising lights, only two storage areas designated for the load are used for turning on and turning off the lights. Therefore, in such cases, many memory elements are wasted.

On the other hand, some types of loads require programs that are too long to be written on one card. In such cases, conventionally, a long program is divided into multiple parts, and the multiple divided programs are distributed and stored in multiple storage areas.

When one load is controlled by a program distributed over multiple storage areas, for example B and C, output switches SB corresponding to areas B and C are used.
and SC are connected in parallel, and one load is controlled by the contact outputs of output switches SB and SC connected in parallel. Therefore, when there is a large load that requires long programs, there is a drawback that the storage area is insufficient.

In this way, according to the conventional card input type program timer, even if there is a blank storage area,
Since the storage area cannot be used for storing other load programs, there is a drawback that the storage means 104 cannot be used effectively.

<Purpose of the invention> This invention aims to provide a card-type program timer that can store even long programs for the same load.

<Summary of the invention> In this invention, instead of specifying a time area for each load in the set time storage means, input programs are stored sequentially from the first address, and an additional mode setting means is used. established,
By setting the addition mode setting means to the addition mode and reading the card, any program can be added to the already input programs.

Therefore, according to this invention, since storage areas are not designated for each load, even a long program for one load can be stored.

<Example of the invention> Fig. 3 shows an example of the invention. In FIG. 3, parts corresponding to those in FIG. 1 are designated by the same reference numerals.

The characteristic structure of this invention is that a normal-additional mode setting means 301 is provided as an input means for setting the other normal mode and additional mode of the card reading means 105.

The normal-additional mode setting means 301 can be constituted by a snap switch, a slide switch, or the like. When this switch is turned to the contact A side, it becomes the normal mode, and when it is turned to the B side, it becomes the additional mode.

<Description of operation of the invention> Setting the mode setting means 301 to the normal mode,
In this state, the card 106 is read by the card reading means 105.
By inserting the card into the card, the central processing unit 101 retrieves data regarding the load attached to the card and erases the data. At the same time, the setting time data of the newly read card is written to the vacant address.

FIG. 4 shows the state of data written to the storage means 104. In FIG. 4, B ₀ to B ₇ indicate bit NO. This example shows a case where 8 bits are used as one word. Also in this example there are four addresses
A case is shown in which one time data is stored using ADR ₁ to ADR ₄ . Address ADR ₁ stores load data and blowing time or on/off data when operating as a timer. address
ADR ₂ stores a flag indicating the presence or absence of day of the week data and time data. Address ADR ₃ stores 1 decile data and 10 decile data, and address ADR ₄
stores the 1 o'clock data and the 10 o'clock data.

By attaching load data to each time data in this way, it is possible to search for time data by load, regardless of where the load data is stored in the storage means 104, that is, even if the time data is not arranged in an orderly manner by load. can do. This eliminates the need to divide the storage means 104 into areas for each load.

On the other hand, the mode setting means 301 is set to the additional mode, and in this state the card 106 is inserted into the card reading means 1.
In this case, the memory device 1 is inserted into the memory device 1 without erasing the previously stored time data.
Write the newly read time data to the empty address 04. By setting the mode setting means 301 to the addition mode in this way, even a program whose length cannot fit on one card can be divided into multiple cards and input. The state of the operation is shown in a flowchart in FIG.

The program stored in the storage means 104 is compared with the current time measured by the clock means 103 by the read operation, and if the current time and the set time and day of the week match, the program is read out according to the load information attached to the program. Output switch SA corresponding to load
~ SF is operated on or off to control the load.

<Effects of the invention> As explained below, according to this invention, by setting the add mode, even programs that are too long to fit on one card can be stored in the storage means 104 as programs with the same load. can do. In addition, the output switch controlled by the readout output controls the switch associated with the load according to the load specification attached to the program, so multiple switches can be connected in parallel to control one load. You don't have to do anything to make it work. Therefore, it is possible to control a number of loads corresponding to the number of output switches SA to SF.

Furthermore, even if Monday to Friday is a regular day of work and Saturday is a half-day day of work, according to this invention, the program for Monday to Friday and the program for Saturday can be stored in the storage means 104 as programs with the same load. Since the same output switch can be controlled by the readout output, there is an advantage that even in such a case, it is not necessary to connect the output switches in parallel.

[Brief explanation of the drawing]

Figure 1 is a block diagram to explain the configuration of a conventional card-type program timer, Figure 2 is a front view to explain a card used in the conventional card-type program timer, and Figure 3 is an implementation of this invention. A block diagram for explaining an example, FIG. 4 is a diagram for explaining the storage state of time data used in the program timer of this invention, and FIG. 5 is a flow chart for explaining the operation of the program timer of this invention. FIG. 101: Central processing unit, 102: ROM, 10
3: Time measurement means, 104: Set time storage means, 10
5: Card reading means, 107: Input port, 10
8: Output port, SA~SF: Output switch, 30
1: Normal-additional mode setting means.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A. Setting time storage means for storing the time and day of the week at which the load is controlled; B. Timing means for measuring the current time and day of the week using a time signal; C. a detection means for detecting a match between the current time and day of the week stored in the set time storage means and the set time and day of the week stored in the set time storage means; A card reading means for inputting the set time and day of the week for each type of load into the set time storage means; A program timer comprising: a normal-additional mode setting manual switch for setting a mode and an additional storage mode in which new data is added and stored;